Welcome

Power

presentationPoint

Keerthi sharan.Y

History of communication technology

Contents :-Introduction Early modes of

communicationsEvolution of tele-

communicationsTechnology through out

yearsconclusion

Introduction:  Communication is the basis of our lives and we would in this day and age, be handicapped without it. Everyday we are communicating with each other in some way or another, be it by using words, actions or even expressions in conveying a message. We humans depend not only on face-to-face communication but the kind that brings technology to the fore to bridge that gap between people by mere seconds across vast distances.

We take a look briefly into what are the major types of communication, along with their importance. Communication as you can see, is an important factor that governs our everyday lives. What is needed most is the effectiveness of how we communicate, which is often misinterpreted. In order to pass a message along in its entirety without jumbling up its core meaning, it is wise to always review what is being sent, and think beforehand about what is right to say when put into words

IN THE 5TH CENTURY, LETTERS AND DOCUMENTS COULD BE SENT BY USING PIGEONS’ HOMING ABILITIES.

Pigeons were trained by being removed from their homes and taken to a destination, from which they would returned home.

Early modes of communication

The first communication techniques implemented :

• Smoke signals

• Torch signals

• Flashing mirrorsEvolutions

Observation stations were build on hilltop to relay these messages over long distances

One of the NSA’s observatory station at Teufelsberg

These networks were replaced by telegraph network invented by “sameul morse”

1838

Morse code machine International morse code

Marconi-Radio ability-first wireless telegraphy

1897

Apparatus used to send one way signals

By 19th century :- Alexander graham bell telephone invention

Alexander Graham Bell, who patented the telephone, inaugurating the 1,520-km telephone line.

Working model

1950’s – 60’s centuryAT and T bell labs and other communication companies developed the theory of cellular radio telephony

20th century :-After the invention of mobile phones till 20th century mobile were made to access only for voice and sms usage.

21st century :-SMART PHONES were biggest evolution created in the tele-communications

conclusion :-We have seen a drastic changeover in communicational technologies and in our life styles too.There is no point in that, it doesn’t take much time for us to convert from 4G to 5G and much more advanced.Only the thing is how ethically we are perfectly synchronised with the technology in our livelihoods.

Thank You

Keerthi Sharan.Y